Notting Hill Carnival’s £4.66m Security Bill: What Proper Crowd Investment Looks Like

by | Jun 18, 2026 | latest industry insights

Crowd control barriers and security at a large London public event - event security cost and crowd management

The Mayor of London has committed £4.66m of additional funding to Notting Hill Carnival 2026, on top of nearly £950,000 already pledged by City Hall. The money is earmarked for crowd safety improvements ahead of the event’s 60th anniversary in August, and follows an independent review backed by City Hall, the Metropolitan Police, and the Royal Borough of Kensington and Chelsea.

The figure looks large in isolation. In context, it isn’t. Notting Hill Carnival draws more than two million people across two days through a tight residential street footprint, with around 50,000 performers and more than 30 sound systems in operation. For anyone responsible for crowd safety at scale, the headline question is not why £4.66m is being spent – it is whether spending of that order, channelled the right way, is enough to manage a known density problem.

What the money is actually paying for

City Hall has stated that the new funding allows carnival organisers to take on specific operational responsibilities previously absorbed by the Metropolitan Police, freeing officers to concentrate on core policing duties. In plain terms, that means the event itself is now paying for more of its own stewarding, marshalling, and crowd management infrastructure – rather than relying on the public purse via police deployment.

That shift matters. The cost of policing the 2023 Carnival has been reported at around £11.7m, with a significant number of officer injuries on duty. Restructuring how those costs are split is one of the few levers available without changing the route, the dates, or the cultural shape of the event.

The review behind the funding

The independent review was commissioned in 2024 by carnival organisers, with support from City Hall, the Met Police, and the Royal Boroughs of Kensington and Chelsea and Westminster. Separately, the London Assembly’s police and crime committee has warned publicly that crowd density at Carnival creates a risk of what it described as a “mass casualty event” if stewarding levels and pinch-point management do not improve. The committee’s 51-page report stated that stewarding levels at the 2024 event did not, in its view, meet what was required for crowd safety.

Those are uncomfortable findings, but they are also the reason £4.66m is now on the table. The funding is a response to a clearly documented risk, not a discretionary grant.

What proper crowd investment looks like at scale

Carnival is an exceptional case, but the spending pattern is instructive for any large-scale event. When investment is done seriously, it tends to cover the same five categories:

  • Stewarding density. Enough trained, briefed marshals at pinch points to influence flow before density becomes dangerous. Numbers reported for Carnival sit around 900 to 1,000 security personnel per main day.
  • Pre-event modelling. Crowd-flow simulation, ingress and egress timing, and identification of choke points before the event opens.
  • Welfare and reporting infrastructure. Carnival’s “Safer Spaces” purple hubs, where attendees can report harassment or get medical help in a staffed environment, are a recognised model for any large public event.
  • Multi-agency coordination. The Carnival planning process involves the Royal Boroughs, the Met, British Transport Police, Transport for London, London Fire Brigade, and St John Ambulance, among others. The cost of that coordination is rarely visible but is non-negotiable.
  • Transparent post-event review. Funded reviews, published findings, and corrective action are what turn a near-miss into a hardened operation the following year.

What this means for event organisers and venue clients

Few of our clients operate at Carnival’s scale. But the underlying lesson translates down to corporate gatherings, retail openings, public-facing brand activations, and ticketed venues:

  • Security spend should be modelled from expected density and dwell time, not from headcount alone. Two thousand people in a tight footprint is a different risk profile from two thousand in an open one.
  • Stewarding levels are easy to under-cost in a budget round and very hard to add to on the day. Lock numbers in early.
  • Welfare and reporting points are now an expected feature, not a nice-to-have. Attendees and regulators both look for them.
  • Multi-agency liaison – police, council licensing, transport, ambulance – needs a named lead inside your event team. The role gets harder, not easier, as the event grows.
  • Document your post-event review. Even on smaller events, a written debrief is what turns an incident into a lesson rather than a liability.

The £4.66m figure attached to Carnival sounds high because the public sees it as a single line. In reality it is what a credible plan looks like once an independent review has been carried out and acted on. The same principle holds at every scale: the cost of doing crowd security properly is almost always lower than the cost of getting it wrong.

Need a security review?

Our team plans, staffs, and manages crowd safety for corporate events, brand activations, and ticketed venues across London and the wider UK. We work to SIA standards and align with Martyn’s Law statutory guidance from the planning stage onwards.

For event security, stewarding, and pre-event crowd risk assessments, see our event security page, our manned guarding services, or contact us directly:

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